Display device

Abstract

A display device includes a bezel, first and second light guide plates (LGP), first and second light emitting element, first and second reflection sheets, a first fixing member, and at least one display panel. Each of the first and second LGPs has a bottom surface, a light exit surface, a light incident surface, and a first side surface. The first and second reflection sheets are located between the bezel and the first LGP and between the bezel and the second LGP, respectively. Bent portions of the first and second reflection sheets are disposed beside the first side surface of the first LGP and the first side surface of the second LGP, respectively and located between the first side surface of the first LGP and the first side surface of the second LGP. The first fixing member is sandwiched between the bent portions of the first and second reflection sheets.

What is claimed is: 
     
       1. A display device, comprising:
 a bezel, having accommodation space; 
 a first light guide plate and a second light guide plate, disposed in the accommodation space of the bezel, wherein each of the first light guide plate and the second light guide plate has a bottom surface, a light exit surface, a light incident surface, and a first side surface, the bottom surface and the light exit surface are disposed opposite to each other, the light incident surface is connected between the bottom surface and the light exit surface, and the first side surface is connected between the bottom surface and the light exit surface and disposed on one side of the light incident surface; 
 a first light emitting element and a second light emitting element, disposed in the accommodation space of the bezel and respectively located beside the light incident surface of the first light guide plate and the light incident surface of the second light guide plate; 
 a first reflection sheet and a second reflection sheet, disposed in the accommodation space of the bezel and respectively located between the bezel and the first light guide plate and between the bezel and the second light guide plate, wherein each of the first reflection sheet and the second reflection sheet has a bent portion, the bent portion of the first reflection sheet and the bent portion of the second reflection sheet are respectively disposed beside the first side surface of the first light guide plate and the first side surface of the second light guide plate, and the bent portion of the first reflection sheet and the bent portion of the second reflection sheet are located between the first side surface of the first light guide plate and the first side surface of the second light guide plate; 
 a first fixing member, sandwiched between the bent portion of the first reflection sheet and the bent portion of the second reflection sheet, wherein two opposite surfaces of the first fixing member are respectively in contact with the bent portion of the first reflection sheet and the bent portion of the second reflection sheet; and 
 at least one display panel, disposed on the light exit surface of the first light guide plate and the light exit surface of the second light guide plate; 
 wherein each of the first reflection sheet and the second reflection sheet has a main portion, the main portion of the first reflection sheet is connected to the bent portion of the first reflection sheet, the main portion of the second reflection sheet is connected to the bent portion of the second reflection sheet, the main portion of the first reflection sheet is completely located between the first light guide plate and the bezel, and the main portion of the second reflection sheet is completely located between the second light guide plate and the bezel. 
 
     
     
       2. The display device according to  claim 1 , wherein the bent portion of the first reflection sheet covers a first portion of the first side surface of the first light guide plate but does not cover a second portion of the first side surface of the first light guide plate. 
     
     
       3. The display device according to  claim 2 , wherein the bent portion of the second reflection sheet covers a first portion of the first side surface of the second light guide plate but does not cover a second portion of the first side surface of the second light guide plate. 
     
     
       4. The display device according to  claim 3 , wherein the first fixing member is further sandwiched between the second portion of the first side surface of the first light guide plate and the second portion of the first side surface of the second light guide plate, and the two opposite surfaces of the first fixing member are respectively in contact with the second portion of the first side surface of the first light guide plate and the second portion of the first side surface of the second light guide plate. 
     
     
       5. The display device according to  claim 1 , wherein the bezel comprises a bottom board and a first sidewall extending upward from the bottom board, and the first light emitting element and the second light emitting element are respectively disposed between the first sidewall of the bezel and the light incident surface of the first light guide plate and between the first sidewall of the bezel and the light incident surface of the second light guide plate, the display device further comprising:
 a second fixing member, sandwiched between the light incident surface of the first light guide plate and the first sidewall of the bezel and between the light incident surface of the second light guide plate and the first sidewall of the bezel, wherein the second fixing member spans the first fixing member. 
 
     
     
       6. The display device according to  claim 5 , wherein each of the first light guide plate and the second light guide plate further has a second side surface disposed opposite to the light incident surface and connected between the bottom surface and the light exit surface, and the bezel further comprises a second sidewall extending upward from the bottom board and disposed opposite to the first sidewall of the bezel, the display device further comprising:
 a third fixing member, sandwiched between the second side surface of the first light guide plate and the second sidewall of the bezel and between the second side surface of the second light guide plate and the second sidewall of the bezel, wherein the third fixing member spans the first fixing member. 
 
     
     
       7. The display device according to  claim 1 , further comprising:
 a first optical film set, disposed on the light exit surface of the first light guide plate and located between the light exit surface of the first light guide plate and the at least one display panel, wherein the first optical film set comprises at least one first optical film; and 
 a second optical film set, disposed on the light exit surface of the second light guide plate and located between the light exit surface of the second light guide plate and the at least one display panel, wherein the second optical film set comprises at least one second optical film, and 
 the first fixing member is further disposed between the first optical film set and the second optical film set. 
 
     
     
       8. The display device according to  claim 7 , wherein the two opposite surfaces of the first fixing member are further in contact with at least one sidewall of the at least one first optical film and at least one sidewall of the at least one second optical film, respectively. 
     
     
       9. The display device according to  claim 1 , further comprising:
 an optical film set, disposed on the light exit surface of the first light guide plate and the light exit surface of the second light guide plate and located between the light exit surface of the first light guide plate and the at least one display panel and between the light exit surface of the second light guide plate and the at least one display panel, wherein the optical film set covers the first fixing member. 
 
     
     
       10. The display device according to  claim 1 , wherein a direction is parallel to the light incident surface and the light exit surface, the first fixing member has a width w in the direction, and 0.15 mm≤w≤6 mm. 
     
     
       11. The display device according to  claim 1 , wherein a height of the bent portion of the first reflection sheet is lower than a height of the first light guide plate, and a height of the bent portion of the second reflection sheet is lower than a height of the second light guide plate, so that a portion of the first fixing member contacts a top of the bent portion of the first reflection sheet and a top of the bent portion of the second reflective sheet. 
     
     
       12. The display device according to  claim 1 , wherein the first side surface of the first light guide plate has a width H 1  in a direction, the first reflection sheet covers a first portion of the first side surface of the first light guide plate and does not cover a second portion of the first side surface of the first light guide plate, the second portion of the first side surface of the first light guide plate has a width h 1  in the direction, and ¼≤(h 1 /H 1 )≤½;
 wherein the first side surface of the second light guide plate has a width H 2  in the direction, the second reflection sheet covers a first portion of the first side surface of the second light guide plate and does not cover a second portion of the first side surface of the second light guide plate, the second portion of the first side surface of the second light guide plate has a width h 2  in the direction, and ¼≤(h 2 /H 2 )≤½. 
 
     
     
       13. A display device, comprising:
 a bezel, having an accommodation space; 
 a first light guide plate and a second light guide plate, disposed in the accommodation space of the bezel, wherein each of the first light guide plate and the second light guide plate has a bottom surface, a light exit surface, a light incident surface, and a first side surface, the bottom surface and the light exit surface are disposed opposite to each other, the light incident surface is connected between the bottom surface and the light exit surface, and the first side surface is connected between the bottom surface and the light exit surface and disposed on one side of the light incident surface; 
 a first light emitting element and a second light emitting element are disposed in the accommodation space of the bezel, and are respectively located beside the light incident surface of the first light guide plate and the light incident surface of the second light guide plate; 
 a first reflection sheet and a second reflection sheet, disposed in the accommodation space of the bezel and respectively located between the bezel and the first light guide plate and between the bezel and the second light guide plate, wherein each of the first reflection sheet and the second reflection sheet has a bent portion, the bent portion of the first reflection sheet and the bent portion of the second reflection sheet are respectively disposed beside the first side surface of the first light guide plate and the first side surface of the second light guide plate, and the bent portion of the first reflection sheet and the bent portion of the second reflection sheet are located between the first side surface of the first light guide plate and the first side surface of the second light guide plate; 
 a first fixing member, sandwiched between the bent portion of the first reflection sheet and the bent portion of the second reflection sheet, wherein a direction is parallel to the light incident surface and the light exit surface, the first fixing member has a width w in the direction, and 0.15 mm≤w≤6 mm; and 
 at least one display panel, disposed on the light exit surface of the first light guide plate and the light exit surface of the second light guide plate; 
 wherein each of the first reflection sheet and the second reflection sheet has a main portion, the main portion of the first reflection sheet is connected to the bent portion of the first reflection sheet, the main portion of the second reflection sheet is connected to the bent portion of the second reflection sheet, the main portion of the first reflection sheet is completely located between the first light guide plate and the bezel, and the main portion of the second reflection sheet is completely located between the second light guide plate and the bezel. 
 
     
     
       14. The display device according to  claim 13 , wherein the bent portion of the first reflection sheet covers a first portion of the first side surface of the first light guide plate but does not cover a second portion of the first side surface of the first light guide plate. 
     
     
       15. The display device according to  claim 14 , wherein the bent portion of the second reflection sheet covers a first portion of the first side surface of the second light guide plate but does not cover a second portion of the first side surface of the second light guide plate. 
     
     
       16. He display device according to  claim 15 , wherein the first fixing member is further sandwiched between the second portion of the first side surface of the first light guide plate and the second portion of the first side surface of the second light guide plate between. 
     
     
       17. The display device according to  claim 13 , wherein the bezel comprises a bottom board and a first sidewall extending upward from the bottom board, and the first light emitting element and the second light emitting element are respectively disposed between the first sidewall of the bezel and the light incident surface of the first light guide plate and between the first sidewall of the bezel and the light incident surface of the second light guide plate, the display device further comprising:
 a second fixing member, sandwiched between the light incident surface of the first light guide plate and the first sidewall of the bezel and between the light incident surface of the second light guide plate and the first sidewall of the bezel, wherein the second fixing member spans the first fixing member. 
 
     
     
       18. He display device according to  claim 17 , wherein each of the first light guide plate and the second light guide plate further has a second side surface disposed opposite to the light incident surface and connected between the bottom surface and the light exit surface, and the bezel further comprises a second sidewall extending upward from the bottom board and disposed opposite to the first sidewall of the bezel, the display device further comprising:
 a third fixing member, sandwiched between the second side surface of the first light guide plate and the second sidewall of the bezel and between the second side surface of the second light guide plate and the second sidewall of the bezel, wherein the third fixing member spans the first fixing member. 
 
     
     
       19. The display device according to  claim 1 , further comprising:
 a first optical film set, disposed on the light exit surface of the first light guide plate and located between the light exit surface of the first light guide plate and the at least one display panel, wherein the first optical film set comprises at least one first optical film; and 
 a second optical film set, disposed on the light exit surface of the second light guide plate and located between the light exit surface of the second light guide plate and the at least one display panel, wherein the second optical film set comprises at least one second optical film, and 
 the first fixing member is further disposed between the first optical film set and the second optical film set. 
 
     
     
       20. The display device according to  claim 19 , wherein the two opposite surfaces of the first fixing member are further in contact with at least one sidewall of the at least one first optical film and at least one sidewall of the at least one second optical film, respectively. 
     
     
       21. The display device according to  claim 13 , further comprising:
 an optical film set, disposed on the light exit surface of the first light guide plate and the light exit surface of the second light guide plate and located between the light exit surface of the first light guide plate and the at least one display panel and between the light exit surface of the second light guide plate and the at least one display panel, wherein the optical film set covers the first fixing member. 
 
     
     
       22. The display device according to  claim 13 , wherein a height of the bent portion of the first reflection sheet is lower than a height of the first light guide plate, and a height of the bent portion of the second reflection sheet is lower than a height of the second light guide plate, so that a portion of the first fixing member contacts a top of the bent portion of the first reflection sheet and a top of the bent portion of the second reflective sheet. 
     
     
       23. The display device according to  claim 13 , wherein the first side surface of the first light guide plate has a width H 1  in a direction, the first reflection sheet covers a first portion of the first side surface of the first light guide plate and does not cover a second portion of the first side surface of the first light guide plate, the second portion of the first side surface of the first light guide plate has a width h 1  in the direction, and ¼≤(h 1 /H 1 )≤½;
 wherein the first side surface of the second light guide plate has a width H 2  in the direction, the second reflection sheet covers a first portion of the first side surface of the second light guide plate and does not cover a second portion of the first side surface of the second light guide plate, the second portion of the first side surface of the second light guide plate has a width h 2  in the direction, and ¼≤(h 2 /H 2 )≤½.